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Hansen & Rahn | Family List

Haloragidaceae

habit
woody plants, herbaceous plants

important diagnostics
aquatic plants, leaves floating or submerged

hairs
glandular, peltate or scale-like

distribution
African, Asian, Australian and Oceanian, European, North American, South American

leaf: position
opposite or verticillate, alternate

leaf: nature
not compound, compound, pinnately compound

leaf: venation
pinnate or hardly visible in leaves or leaflets., palmate in leaves or leaflets

margin
with entire margin, lobed or divided, dentate

leaf: stipules
absent, present

inflorescence
solitary, corymb, compound, sympodial or monopodial

flower: sexuality
bisexual, unisexual

flower: symmetry
actinomorphic

flower: receptacle
enlarged, completely united with the ovary, totally or partially covering it

flower: disc
absent

flower: perianth number
0, 2, 3, 4, 5, 6, 7+

flower: perianth nature
perianth of similar segments, perianth of calyx and corolla

flower: sepal number
0, 2, 3, 4

flower: sepal position
all free from one another

flower: sepal nature
sepals valvate

flower: petal number
0, 1, 2, 3, 4

flower: petal position
all free from one another, petals imbricate

flower: petal nature
petals valvate

stamen: number
1, 2, 3, 4, 5, 6, 7, 8

stamen: symmetry
flowers obdiplostemonous

stamen: anthers
basifixed, introrse, opening by longitudinal slits

stamen: filaments
inserted on the corolla, not connate

pistil: style
styles absent, stigmas sessile, styles more than 1, free, style 1, or styles more or less connate

pistil: carpel
1, 2, 3, 4

pistil: ovary
1-locular, 2-locular, 3-locular, 4-locular

pistil: ovule
1 in each loculus, 2 in each loculus, 3+ in each loculus

pistil
carpels free from each other or carpel 1, ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae, ovules attached to the apex of the ovary

fruit: type
a nut, fleshy

fruit: seed
1 seed, 2 seeds, 3+ seeds

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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